What is the challenge of contemporary Constitutional Law regarding the concept of the common good?

I - To develop the concept of human rights as a fundamental source of rights and obligations.
II - To integrate public policies as a core aspect of state action.
III - To reduce the importance of individualism in the social phenomenon.
IV - To promote the protection of cultural heritage as a public good.
a) I and II are correct.
b) II and III are correct.
c) I, II, and IV are correct.
d) I, II, and III are correct.